Question: When was Anatoly Pakhomov the head of government for Sochi?
Paraphrase: At what point was Anatoly Pakhomov the Sochi government head?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q39420 p:P6 ?s . ?s ps:P6 wd:Q4265869 . ?s pq:P580 ?value}